Jan. 27, 2014

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The space agency put up photographs from NASA’s Terra satellite for Jan. 18 of this year and last year.

"The most striking difference between the two years is the amount of snow cover on mountains," NASA writes. "The Sierra Nevada range has very little snow, and Coast Range and Cascade Mountains are almost completely snow free. California gets a third of its water supply from mountain snow, but with warm, dry weather, little snow has accumulated. In January 2014, the snowpack was between 10 and 30 percent of normal."